Resin composition for preventing fibers from unraveling

ABSTRACT

A resin composition for preventing fibers from unraveling according to the present invention comprises ethyl acrylate; poly acrylic amide; poly urethane; methyl acrylate; formaldehyde; antistatic agent; quaternary ammonium; maleic anhydride, and surfactant.

FIELD OF THE INVENTION

The present invention relates generally to a resin composition forpreventing fibers from unraveling, and more specifically to a resincomposition for preventing fibers from unraveling using a resincomprising a thermosetting composite resin compound.

BACKGROUND OF THE INVENTION

In general, when fibers are used to manufacture clothing, a seamstresssews imaginary lines, the edges of a sleeve, and others to prevent thefibers from unravelling at the finish.

However, when the seamstress finishes with sewing, there are problemsthat the quality of the sewing is poor or the seamstress is not good atthe task, which deteriorate the quality of final products.

Although a variety of sewing methods have been developed and utilized tosolve these problems, an issue of fiber unravelling has not beenresolved yet.

In addition, a previously used sewing method of stitching clothingmultiple times with threads may cause the clothing thick. Furthermore,in case of outdoor clothing, when the clothing is used in backpacks,pressure may focus on the sewing lines.

Moreover, while previous sportwear and outdoor clothing usually containseam sealing tapes attached on the sewing lines to improve waterproofperformance, there are limitations that waterproof performance of thesesportwear and outdoor clothing only rely upon the seam sealing tapes.

The related prior arts may be Korean Patent Registration No. 10-1293456and Korean Patent Publication No. 10-2018-0103641.

SUMMARY OF THE INVENTION

A resin composition for preventing fibers from unraveling according tothe present invention comprises ethyl acrylate; poly acrylic amide; polyurethane; methyl acrylate; formaldehyde; antistatic agent; quaternaryammonium; maleic anhydride, and surfactant.

The resin composition comprises from about 20 weight % to about 30weight % of the ethyl acrylate; from about 30 weight % to about 40weight % of the poly acrylic amide; from about 15 weight % to about 16weight % of the poly urethane; from about 13 weight % to about 32 weight% of the methyl acrylate; from about 2 weight % to about 3 weight % ofthe formaldehyde; from about 0.3 owf % to about 0.5 owf % of theantistatic agent; from about 0.1 owf % to about 0.2 owf % of thequaternary ammonium; from about 0.05 owf % to about 0.1 owf % of themaleic anhydride, and from about 0.2 owf % to about 0.3 owf % of thesurfactant.

The antistatic agent contains polyethylene glycol ester. It is foundthat the 0.5 owf % or more of the antistatic agent causes migrationphenomenon and deteriorates the antistatic effect.

It is found that this phenomenon occurs differently in synthetic fibersand natural fibers. When the natural fibers have static electricity, theresult was totally different. However, the antistatic agent of thepresent invention only applies to synthetic fibers.

The quaternary ammonium comprises the Cationic Amine about 30% based ontotal weight of the quaternary ammonium, cation about 20%, ethyleneoxide Tween about 12%, Antistatic (E.I. Du Pont de Nemours) about 38%.

The thermosetting resin composition has properties of from about 80,000to about 120,000 cps of viscosity at (30±1)° C., from about 34% to about52% of solid content, from about 5 kgf/cm² to about 20 kgf/cm² of 100%modulus, from about 100 kgf/cm² to about 500 kgf/cm² of tensilestrength, and from about 800% to about 2,000% of elongation.

A resin composition for preventing fibers from unraveling provided inthe present invention is a resin composition which can be used todirectly coat fibers and has effect that the fibers are not unraveledwithout seam finishes. Thus, it makes it possible to create clothing ofa new sensibility, which does not need seam finishes, and can provideadvantages that clothing of a new trend can be created through theinnovative design.

In addition, fibers on which the resin composition is applied accordingto the present invention are not unraveled through the adhesive propertyof the resin, which can reduce the sewing cost. It also can be appliedto seamless technologies which can create clothing of a new sensibility.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a graph showing the test results of thermosetting phenomenonof a resin composition by tenter dryer temperature and heat according toone embodiment of the present invention.

FIG. 2 is a graph showing a correlation between the quantity of a resincomposition and hardness according to one embodiment of the presentinvention.

FIG. 3 is a graph showing a relation between the concentration of aresin composition and tackiness, a degree of how much threads are notunraveled, according to one embodiment of the present invention.

FIGS. 4 and 5 are a graph showing a correlation between theconcentration of a resin composition and hardness according to oneembodiment of the present invention.

DETAILED DESCRIPTION EMBODIMENTS OF THE INVENTIONS

Hereafter, the present invention will be described in more detail.

The present invention relates to a resin composition for preventingfibers from unraveling, and more specifically, a purpose of theinvention is to provide a resin composition which can permanentlyprevent fibers from unraveling using a resin comprising thermosettingcomposite resin compound. More particularly, the purpose of the presentinvention is to provide a resin composition for preventing fibers fromunraveling, which has advantages that it is manufactured without seamfinishes and a seamstress through using coating the resin composition onfibers.

In order to achieve the goal above, the inventors of the presentinvention found that permanent prevention of fiber unraveling can bepossible by applying a method of hardening a composite resin compoundmade from a thermosetting resin with heat to fibers; the inventorscompleted the present invention based on the above.

A resin composition for preventing fibers from unraveling according tothe present invention, which achieves the goal above, comprises:

-   -   ethyl acrylate;    -   poly acrylic Amide;    -   poly urethane;    -   methyl acrylate;    -   formaldehyde;    -   antistatic agent; quaternary ammonium; maleic anhydride, and        surfactant.

Preferably, the thermosetting resin composition comprises:

-   -   from about 20 weight % to about 30 weight % of the ethyl        acrylate;    -   from about 30 weight % to about 40 weight % of the poly acrylic        amide;    -   from about 15 weight % to about 16 weight % of the poly        urethane;    -   from about 13 weight % to about 32 weight % of the methyl        acrylate;    -   from about 2 weight % to about 3 weight % of the formaldehyde;    -   from about 0.3 owf % to about 0.5 owf % of the antistatic agent;        from about 0.1 owf % to about 0.3 owf % of the quaternary        ammonium; from about 0.05 owf % to about 0.1 owf % of the maleic        anhydride, and from about 0.2 owf % to about 0.3 owf % of the        surfactant.

It was found that the 0.5 owf % or more of the antistatic agent causesmigration phenomenon and deteriorates the antistatic effect.

It was found that this phenomenon occurs differently in synthetic fibersand natural fibers. When the natural fibers had static electricity, theresult was totally different. However, the antistatic agent of thepresent invention applies to synthetic fibers.

When the resin composition comprises less than about 20 weight % of theethyl acrylate content, adhesive effect of it is significantly degraded.When the resin composition comprises more than about 30 weight % of theethyl acrylate content, texture of it may be too hard or too firm.

In addition, when the resin composition comprises less than about 30weight % of the poly acrylic amide content, adhesive effect of it issignificantly degraded. When the resin composition comprises more thanabout 40 weight % of the ethyl acrylate content, texture of it may betoo hard or too firm. When the resin composition comprises less thanabout 15 weight % of the poly urethane content, adhesive effect of it issignificantly degraded. When the resin composition comprises more thanabout 16 weight % of the poly urethane content, texture of it may be toohard or too firm.

When the resin composition comprises less than about 13 weight % of themethyl acrylate content, adhesive effect of it is significantlydegraded. When the resin composition comprises more than about 32 weight% of the methyl acrylate content, texture of it may be too hard or toofirm.

When the resin composition comprises less than about 2 weight % of theformaldehyde content, adhesive effect of it is significantly degraded.When the resin composition comprises more than about 3 weight % of theformaldehyde content, texture of it may be too hard or too firm.

According to the present invention, the antistatic agent is nonionicpolyethylene glycol Ester, or poly urethane polymer and ethyl acetate.

Preferably, from about 0.3 owf % to about 0.5 owf % of the antistaticagent is blended into a resin composition. It was found that when lessthan about 0.3 owf % of the antistatic agent content was blended intothe resin composition, antistatic effect of it was significantlydegraded. When more than about 0.5 weight % of the antistatic agentcontent was blended into the resin composition, migration was occurred,and antistatic property was degraded.

According to the present invention, from about 0.1 owf % to about 0.2owf % of quaternary ammonium is blended into a resin composition. Thequaternary ammonium comprises about 30 owf % of the Cationic Amine basedon total weight of the quaternary ammonium, about 20 weight % of cation,about 12 weight % of ethylene oxide Tween, about 38 weight % ofAntistatic (E.I. Du Pont de Nemours). The quaternary ammonium hasantistatic property; as cationic surfactant, the quaternary ammoniumconverts hydrophobic substance into hydrophile substance throughhydrolysis. Preferably, from about 0.3 owf % to about 0.5 owf % of thequaternary ammonium is blended into a resin composition. It was foundthat when less than about 0.3 owf % of the quaternary ammonium wasblended into the resin composition, antistatic effect of it was notclearly seen. When the more than about 0.5 owf % of the quaternaryammonium was blended into the resin composition, antistatic effect of itwas degraded.

According to the present invention, the maleic anhydride easilydissolves in water as inorganic compound and help fiber material toabsorb water through providing hydrophile property to the fibermaterial. Preferably, from about 0.3 owf % to about 0.4 owf % of themaleic anhydride is blended into a resin composition. When less thanabout 0.3 owf % of the maleic anhydride was blended into the resincomposition, adhesive effect of it is significantly degraded. When morethan about 0.4 owf % of the maleic anhydride was blended into the resincomposition, textile of it was too hard or too firm.

According to the present invention, preferably the surfactant isnonionic compound. The surfactant is Dedecyl Trimethyl Chloride madewith Cationic surfactant, which was found as an appropriate surfactantin the present invention. It was found that the surfactant in thepresent invention has continuous sterilizing capacity, good emulsifyingcapacity, and high antistatic property. In addition, as the surfactanthas high chemical and mechanical stability and is a compound consistingof hydrophobic and hydrophile parts, it was shown that the surfactanthas good emulsifying capacity and sterilizing capacity. Specially, thesurfactant can be used in from about 5 to about 9 range on the PH, whichwas found that the surfactant is appropriate to the present invention.The content of the surfactant is from about 0.2 owf % to about 0.3 owf%.

The thermosetting resin composition made as mentioned above according tothe present invention can provide a resin composition having propertiesof from about 80,000 to about 120,000 cps of viscosity at (30±1)° C.,from about 34% to about 52% of solid content, from about 5 kgf/cm² toabout 20 kgf/cm² of 100% modulus, from about 100 kgf/cm² to about 500kgf/cm² of tensile strength, and from about 800% to about 2,000% ofelongation.

Hereafter, the present invention will be described in more detail withreference to the accompanying drawings.

The graphs of the accompanying drawings described below shows testresults which were performed with a resin composition as a sample, whichwas made based on the description above according to the presentinvention. The test results in the accompanying drawings are preferableembodiments, and the present invention is not limited to the testresults in the accompanying drawings. The present invention includesmany modifications which can be made by an ordinary person skilled inthe art within scopes of appended claims.

FIG. 1 is a graph showing the test results of thermosetting phenomenonby tenter dryer temperature and heat of a resin composition according toone embodiment of the present invention. Generally, a thermosettingresin is likely to be hard when heat treatment. In order to control thehardness, the test was performed to know surface hardness of the resincomposition according to heat range. The graph in FIG. 1 is the testresult of the variation of the surface hardness of the resin compositionaccording to heat range. A heat tenter dryer was used for curing whenheat-setting. The variations of the hardness were shown as two aspects.It was found that the first was the variation of hardness according to aconcentration of a resin composition and the second was the variation ofhardness according to temperature when heat treatment.

As shown in FIG. 1 , hardening phenomenon according to temperatureregularly increases; however, when the temperature was over 230° C.,carbonization was partially occurred, and melting phenomenon wasoccurred in some parts.

FIG. 2 is a graph showing a correlation between the quantity of a resincomposition and hardness according to one embodiment of the presentinvention. The results show that the quantity of a resin compositionprovided in the present invention is appropriate when it is from about 3owf % (on the weight of fiber) to about 5 owf %.

Specifically, the experiment was performed by increasing a concentrationof the resin composition with a fixed heat treatment time and a fixedheat temperature under the same other conditions.

FIG. 3 is a graph showing a relation between the concentration of aresin composition and a tackiness, a degree of how much threads are notunraveled, according to one embodiment of the present invention. Theexperiment was performed by increasing temperature with a constantconcentration of a resin composition. The experiment showed the testresult as below.

FIGS. 4 and 5 are a graph showing a correlation between theconcentration of a resin composition and hardness according to oneembodiment of the present invention. It was found that an amount ofcoating substance is appropriate in from about 60% to about 70% based ona maximum of softness, a softened state, not a peak of a elastic region.

As described above, it was found in the present invention thatstabilization of a resin composition and especially, a heat treatmentare important to embody a right design using a proper compound.

What is claimed is:
 1. A resin composition for preventing fibers from unraveling comprising: from 20 weight % to 30 weight % of ethyl acrylate; from 30 weight % to 40 weight % of poly acrylic amide; from 15 weight % to 16 weight % of poly urethane; from 13 weight % to 32 weight % of methyl acrylate; from 2 weight % to 3 weight % of formaldehyde; from 0.3 weight % to 0.5 weight % of antistatic agent; from 0.3 weight % to 0.4 weight % of quaternary ammonium; from 0.3 weight % to 0.4 weight % of maleic anhydride, and from 0.2 weight % to 0.3 weight % of surfactant.
 2. The resin composition according to claim 1, wherein the antistatic agent is polyethylene glycol Ester. 